David A. Raichlen
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Articles (8)
Year:
2025
Year:
2024
Year:
2024
Year:
2023
Year:
2023
Objectives Physically active lifestyles are associated with several health benefits. Physical activity (PA) levels are low in post‐industrial populations, but generally high throughout life in subsistence populations. The Hadza are a subsistence‐oriented foraging population in Tanzania known for being physically active, but it is unknown how recent increases in market integration may have altered their PA patterns. In this study, we examine PA patterns for Hadza women and men who engage in different amounts of traditional foraging. Materials and Methods One hundred and seventy seven Hadza participants (51% female, 19–87 years) wore an Axivity accelerometer (dominant wrist) for ~6 days during dry season months. We evaluated the effects of age, sex, and lifestyle measures on four PA measures that capture different aspects of the PA profile. Results Participants engaged in high levels of both moderate‐intensity PA and inactivity. Although PA levels were negatively associated with age, older participants were still highly active. We found no differences in PA between participants living in more traditional “bush” camps and those living in more settled “village” camps. Mobility was positively associated with step counts for female participants, and schooling was positively associated with inactive time for male participants. Conclusions The similarity in PA patterns between Hadza participants in different camp types suggests that high PA levels characterize subsistence lifestyles generally. The sex‐based difference in the effects of mobility and schooling on PA could be a reflection of the Hadza's gender‐based division of labor, or indicate that changes to subsistence‐oriented lifestyles impact women and men in different ways.
Year:
2023
Year:
2022
Year:
2021
Collaborators (11)
Noah Snyder-Mackler
Assistant Professor
Arizona State University
Hok Chio Lai
Assistant Professor
University of Southern California
Stephane Cullati
Senior Lecturer
University of Fribourg
Herman Pontzer
-
Boris Cheval
Assistant Professor
École Normale Supérieure
Zoltán Kutalik
-
Joshua Akey
Professor
Princeton University
Matthieu P. Boisgontier
Assistant Professor
University of Ottawa
Rand Wilcox
Professor
University of Southern California
Silvan Urfer
University of Washington
Daniel E. L. Promislow
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